Mecynotarsus setulosus, Kejval & Cz, 2013

Kejval, Zbyněk, 2013, Taxonomic revision of the Australian Notoxinae (Coleoptera: Anthicidae), Acta Entomologica Musei Nationalis Pragae (suppl.) 53, pp. 1-98 : 77-79

Mecynotarsus setulosus sp. nov.

( Figs 108, 109 , 133 )

Type locality. Australia, Queensland, 70 km SW of Greenvale.

Type material. HOLOTYPE: ♂, ‘ Qld. Greenvale 70 km SW at light. 12-21 Apr 1995 A. J. Watts [p] // SAMA Database No. 25-028972 [p]’ ( SAMA). PARATYPES: 3 ♂♂ 5 ♀♀, same data, except: ‘17-26 Jan. 96’ and different database numbers: 25-028989, 25-029012, 25-028995, 25-028999, and 25-029004 (SAMA); 3♂♂ 1 ♀, same data, except: ‘ 14-24 Mar 1995 ’ and different database numbers: 25-028943, 25-0289581, and 25-028966 (SAMA); 4 ♂♂, same data, except: ‘ 12-21 Apr 1995 ’ and different database numbers: 25-028970 and 25-028983 (SAMA); 4 ♂♂, same data, except: ‘ 28 Mar -7 Apr 1995 ’ and different database numbers: 25-028992, 25-029005, and 25- 029044 (SAMA); 1 ♀, same data, except: ‘ 29 Jan - 4 Feb 1997 ’ and database number 25-029049 (SAMA); 1 ♂, same data, except: ‘1-10 Mar. 96’ and database number 25-028994 (SAMA); 1 ♂ 6 ♀♀, same data, except: ‘22-30 Nov. 95’ and database numbers: 25-028996, 25-029013, 25-029015, and 25-028987 (SAMA); 2 ♂♂ 3 ♀♀, same data, except: ‘21-31 Oct. 95’ and different database numbers: 25-029025, 25-029035, and 25-029016 (SAMA); 1 ♀, ‘Qld. Bushmans Beach 20Km N Townsvile [sic!], at light A.J.Watts 16-18 Jan 1998 [p] // SAMA Database No. 25-028935’ (SAMA); 1 ♀, ‘ AUSTRALIA, Queensland “Dig Tree”, U.V. light trap 22. XI.1998 leg. George Hangay [p]’ (HNHM); 1 ♂, ‘ AUSTRALIA: Queensland Townsville 16.–22. III. 1965. Exp. Dr. J. Balogh [p] // Mecynotarsus amabilis Lea det. G. Uhmann 1998’ (HNHM); 1 ♂, ‘S.AUST. Mt Sarah Stn 12.4 km ENE Alberga 27°07′31′′S 135°32′50′′E 30Apr-02May 2005, pit trap Arid Rivers Svy,ANB 00101 [p] // Open Forest; Eucalyptus camaldulensis over Acacia stenophylla [p] // SAMA Database No. 25-028789 [p]’ (SAMA); 6 ♂♂ 13 ♀♀, same data, but different database numbers: 25-028790 to 25-028808 (SAMA); 1 ♂, ‘S.A. Eringunda Valley. Flinders Ranges, 6th March, 1973. E.G. Matthews. [p] // SAMA Database No. 25-028912 [p]’ (SAMA); 2 ♂♂ 3 ♀♀, same data, except database numbers: 25028908 to 25-028910, and 25-028914 (SAMA); 1 ♂, same but handwritten data and database number: 25-028915 and 25-028906 (SAMA); 1 ♂, ‘S. Aust. Arkaroola Stn. Kingsmill Ck. 30.20S 139.24E 22/10/1999 Flinders Ra survey [p] // SAMA Database No. 25-028942 [p]’ (SAMA); 2 ♂♂ 2 ♀♀, ‘Olary, S.A. (32.17S 140.19E) 24 km. WNW. 20.xii.70, at light Britton, Misko, Pullen [p] // ANIC Specimen [p; green label]’ ( ANIC, 1 spec. ZKDC); 1 ♀, ‘Aroona Dam site, S. AUSTRALIA red gum area XI–30–1951 WLBrown lt. [p]’ ( DCDC); 1 ♀ ‘ 23.44S 133.44E Temple Bar Gap 15 km W by S of Alice Springs N.T. 7 Nov. 1979 T. Weir [p] // ANIC Specimen [p]’ ( ANIC); 2 ♂♂, ‘Hull River 33km ESE of Docker River NT 17 Nov. 1977 J. A. L. Watson [p] // ANIC Specimen [p; green label]’ ( ANIC); 3 ♂♂, ‘ 19.34S 134.13E 9 km N by E of Tennant Creek N.T. 10 Nov. 1979 T. Weir [p] // ANIC Specimen [p; green label]’ ( ANIC); 1 ♂ 1 ♀ ‘ 31.05S 141.42E Fowlers Gap Res. Stn NSW 29Nov-2Dec1981 J. C. Cardale taken at light [p] // AUST. NAT. INS. COLL. [p; green label]’ ( ANIC); 1 ♂ 3 ♀♀, ‘Bungonia St. Pk. NSW, Shoalhaven River gorge 5-7 Oct. 1985 C. Reid, coll. [p] // collected in sand/ mud [p] // AUST. NAT. INS. COLL. [p; green label]’ ( ANIC, 1 spec. ZKDC); 3 ♀♀, ‘ AUSTRALIA, NW NSW. 102 km N from Broken Hill, Fowlers Gap [p] // at light 15. I. 1981. coll. Hangay & Vojnits [p] // No. 275 [p] // Mecynotarsus amabilis Lea det. G. Uhmann 1998 [p] // compared with type [p; black frame]’ ( HNHM, ZSMC); 2 ♀♀, ‘AUSTR. ( NT), W McDonell NP, SIMPSON GAP, 23°40′S 133°43′E, 600 m, 3.- 4.1.2009, S. Bílý leg. [p]’ ( ZKDC, NMPC); 5 ♀♀, ‘ AUSTRALIA, N. Territory, West MacDonnell Nat. Park, SIMPSON GAP, 23°40′S 133°43′E, 600 m, 3.- 5.01.2009, St. Jakl leg. [p]’ ( ZKDC, NMPC); 2 ♀♀, same data, except: 11.01.2009 ( ZKDC); 1 ♀, ‘ AUSTRALIA, NT, Watarka Nat. Park, near Kathleen Springs, sand dunes, 24°18′S 131°34′E, 620 m, 6.- 8.01.2009, St. Jakl leg. [p]’ ( ZKDC).

Description (holotype, male). Body length 2.1 mm. Body dark reddish brown, elytra unicolourous; legs and antennae reddish.

Antero-lateral margins of frons simple. Gular rugules of different sizes, anteriorly larger, contiguous and ordered as in Figs 138, 139 . Clypeal granules indistinct. Setation of head vertex mostly short, fine and appressed, with some longer setae more raised medially, distinctly coarser ventro-laterally; antero-lateral sides (between eyes and antennal sockets) with coarse, bristly and conspicuously ordered setation ( Fig. 133 ). Antennae rather moderately long; antennomeres II and III about 1.8 times as long as wide, IV and V somewhat more robust, X nearly 1.2 times as long as wide; setation mostly fine, distinctly coarser and longer on basal antennomere.

Pronotum globose to moderately transverse, 1.4 times as long as wide, its lateral margins rather evenly convex in dorsal view; posterior collar narrow and inconspicuous. Pronotal horn rather robust and wide, its posterior angles indicated in dorsal view; horn margins armed with 4 lobules on each side, apical lobule broadly rounded and slightly emarginate medially; horn crest very distinct, raised, with few mostly coarse rugules on margins; submarginal rugules rather distinct, mostly well-spaced; median rugules largely fused and forming longitudinal sculpture (connected with one of rugules of crest margin), several smaller granules present posteriorly. Setation whitish to greyish, scaly, appressed to subdecumbent, distinctly finer and hairy, inconspicuous on pronotal horn dorsally; scales on pronotal disc clearly of two sizes, larger scales slightly raised, distinctly truncate apically; antebasal paired setae absent medially and probably present laterally, difficult to distinguish laterally from another tactile (4 on each side).

Elytra 1.8 times as long as wide; omoplates and postbasal impression absent. Setation greyish to brownish, forming rather vague brownish markings, scaly and appressed, evenly ordered; scales elongate, rounded to subtruncate apically, very densely spaced (surface barely visible); scattered tactile setae absent, but several short erect setae present on humeri and very near base.

Male characters. Sternum VII simple. Tergum VIII and aedeagus as in Figs 108, 109 .

Variation. Body length (♂ ♀) 1.9–2.1 mm. Pronotal horn with 3–5 lobules on each side; apical lobule rarely bilobed. Brownish markings of elytra vague to rather distinct; brownish and greyish scales may be partly mixed in basal half.

Differential diagnosis. Mecynotarsus setulosus sp. nov. may somewhat resemble small specimens of M. kingii or M. exophthalmus sp. nov. by body shape, morphology of the pronotal horn, and setation (dense, appressed uniform scales on elytra, numerous tactile setae laterally on pronotum), but differs by the coarse, bristly and conspicuously ordered setation of the antero-lateral sides of the head ( Fig. 133 ), as well as by the male characters (cf. Figs 108, 109 versus 67, 68 and 47, 48).

Etymology. The species name is a Latin adjective, setulosus , -a, -um (= bearing many small bristles); named in reference to the peculiar setation of the head.

Distribution. Australia: New South Wales, Northern Territory, Queensland, South Australia.

Figures

Figs 104–110. 104–105 – Mecynotarsus pusillus sp. nov.: 104 – tergum VIII, 105 – aedeagus in dorsal view. 106–107 – M. regalis sp. nov.: 106 – tergum VIII, 107 – aedeagus in dorsal view. 108–109 – M. setulosus sp. nov.: 108 – tergum VIII, 109 – aedeagus in dorsal view. 110 – M. speciosus sp. nov., tergum VIII. Scale (0.5 mm):A – Figs 102, 105; B – Fig. 109; C – Figs 106, 107; D – Figs 108, 110.

Figs 133–140. 133 – Mecynotarsus setulosus sp. nov., head in lateral view (paratype, Fowlers Gap), 134 – M. excavatus sp. nov., apex of elytra in female (paratype, Aoue-Enga), 135 – M. grandior sp. nov., apex of elytron in male (paratype, Kimberley Research Station), 136 – M. obesus sp. nov., metatibia with tarsus (paratype, Hull River), 137 – M. excavatus sp. nov., male protibia (paratype, Aoue-Enga). 138–140 – head in ventral view: 138 – M. auripilosus sp. nov. (paratype, Kambah Pool), 139 – M. bullatus sp. nov. (paratype, Regans Ford), 140 – M. ziczac King, 1869 (Swain Reefs).